Package org.apache.hadoop.http

Class HttpServer2Metrics

java.lang.Object

org.apache.hadoop.http.HttpServer2Metrics

@Private
@Unstable
@Metrics(name="HttpServer2",
         about="HttpServer2 metrics",
         context="http")
public class HttpServer2Metrics
extends java.lang.Object

This class collects all the metrics of Jetty's StatisticsHandler and expose them as Hadoop Metrics.

Method Summary

Modifier and Type	Method	Description
int	asyncDispatches()
int	asyncRequests()
int	asyncRequestsWaiting()
int	asyncRequestsWaitingMax()
int	dispatched()
int	dispatchedActive()
int	dispatchedActiveMax()
long	dispatchedTimeMax()
double	dispatchedTimeMean()
double	dispatchedTimeStdDev()
long	dispatchedTimeTotal()
int	expires()
int	requests()
int	requestsActive()
int	requestsActiveMax()
long	requestTimeMax()
double	requestTimeMean()
double	requestTimeStdDev()
long	requestTimeTotal()
int	responses1xx()
int	responses2xx()
int	responses3xx()
int	responses4xx()
int	responses5xx()
long	responsesBytesTotal()
long	statsOnMs()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

asyncDispatches

@Metric("number of requested that have been asynchronously dispatched")
public int asyncDispatches()

asyncRequests

@Metric("total number of async requests")
public int asyncRequests()

asyncRequestsWaiting

@Metric("currently waiting async requests")
public int asyncRequestsWaiting()

asyncRequestsWaitingMax

@Metric("maximum number of waiting async requests")
public int asyncRequestsWaitingMax()

dispatched

@Metric("number of dispatches")
public int dispatched()

dispatchedActive

@Metric("number of dispatches currently active")
public int dispatchedActive()

dispatchedActiveMax

@Metric("maximum number of active dispatches being handled")
public int dispatchedActiveMax()

dispatchedTimeMax

@Metric("maximum time spend in dispatch handling (in ms)")
public long dispatchedTimeMax()

dispatchedTimeMean

@Metric("mean time spent in dispatch handling (in ms)")
public double dispatchedTimeMean()

dispatchedTimeStdDev

@Metric("standard deviation for dispatch handling (in ms)")
public double dispatchedTimeStdDev()

dispatchedTimeTotal

@Metric("total time spent in dispatch handling (in ms)")
public long dispatchedTimeTotal()

expires

@Metric("number of async requests requests that have expired")
public int expires()

requests

@Metric("number of requests")
public int requests()

requestsActive

@Metric("number of requests currently active")
public int requestsActive()

requestsActiveMax

@Metric("maximum number of active requests")
public int requestsActiveMax()

requestTimeMax

@Metric("maximum time spend handling requests (in ms)")
public long requestTimeMax()

requestTimeMean

@Metric("mean time spent handling requests (in ms)")
public double requestTimeMean()

requestTimeStdDev

@Metric("standard deviation for request handling (in ms)")
public double requestTimeStdDev()

requestTimeTotal

@Metric("total time spend in all request handling (in ms)")
public long requestTimeTotal()

responses1xx

@Metric("number of requests with 1xx response status")
public int responses1xx()

responses2xx

@Metric("number of requests with 2xx response status")
public int responses2xx()

responses3xx

@Metric("number of requests with 3xx response status")
public int responses3xx()

responses4xx

@Metric("number of requests with 4xx response status")
public int responses4xx()

responses5xx

@Metric("number of requests with 5xx response status")
public int responses5xx()

responsesBytesTotal

@Metric("total number of bytes across all responses")
public long responsesBytesTotal()

statsOnMs

@Metric("time in milliseconds stats have been collected for")
public long statsOnMs()